Load Specifications
Load data in caliber .277 Fury Commercial with .277 | 150gr | Nosler Partition Gold bullet and 96 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and ReloadSwiss RS 52.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 56,449 psi | 89% | 2461 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 54,578 psi | 87% | 2480 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 54,070 psi | 86% | 2477 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 56,362 psi | 89% | 2536 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 53,809 psi | 85% | 2513 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,197 psi | 78% | 2516 fps | 97.8% |
| Accurate LT-30 | <<locked>> | 82% | 55,463 psi | 88% | 2408 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 55,883 psi | 89% | 2431 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 55,303 psi | 88% | 2543 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 96% | 56,115 psi | 89% | 2536 fps | 99.2% |
| ADI AR 2219 | <<locked>> | 82% | 56,652 psi | 90% | 2520 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 54,259 psi | 86% | 2497 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 88% | 54,766 psi | 87% | 2487 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 56,217 psi | 89% | 2595 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 54,665 psi | 87% | 2638 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 55,564 psi | 88% | 2556 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 84% | 55,927 psi | 89% | 2461 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 56,289 psi | 89% | 2572 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,356 psi | 77% | 2516 fps | 97.8% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 55,999 psi | 89% | 2661 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,462 psi | 86% | 2405 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 54,839 psi | 87% | 2552 fps | 98.8% |
| Bofors RP3 | <<locked>> | 96% | 56,159 psi | 89% | 2572 fps | 99.9% |
| Bofors RP7ᴾ | <<locked>> | 100% | 56,492 psi | 90% | 2533 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 88% | 56,550 psi | 90% | 2490 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 57,000 psi | 90% | 2575 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 55,071 psi | 87% | 2608 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 84% | 54,897 psi | 87% | 2497 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 56,347 psi | 89% | 2526 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 53,983 psi | 86% | 2533 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 90% | 55,854 psi | 89% | 2552 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,353 psi | 70% | 2411 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 54,505 psi | 86% | 2579 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,954 psi | 55% | 1512 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 53,417 psi | 85% | 2503 fps | 99.5% |
| IMR 3031 | <<locked>> | 90% | 55,172 psi | 87% | 2539 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 55,680 psi | 88% | 2523 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 92% | 56,318 psi | 89% | 2503 fps | 96.3% |
| IMR 4198 | <<locked>> | 84% | 56,231 psi | 89% | 2428 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 55,303 psi | 88% | 2516 fps | 96% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,746 psi | 74% | 2461 fps | 97.4% |
| IMR 4895 | <<locked>> | 92% | 54,331 psi | 86% | 2556 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 88% | 54,259 psi | 86% | 2497 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 84% | 54,505 psi | 86% | 2490 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 54,476 psi | 86% | 2523 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 55,390 psi | 88% | 2480 fps | 99.5% |
| Lovex S062 | <<locked>> | 94% | 55,317 psi | 88% | 2523 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 54,128 psi | 86% | 2510 fps | 97.3% |
| Norma 201 | <<locked>> | 90% | 54,143 psi | 86% | 2493 fps | 99.9% |
| Norma 202 | <<locked>> | 90% | 54,534 psi | 86% | 2500 fps | 100% |
| Norma 203B | <<locked>> | 94% | 55,390 psi | 88% | 2562 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 48,675 psi | 77% | 2503 fps | 97.6% |
| Ramshot Big Game | <<locked>> | 94% | 55,767 psi | 88% | 2585 fps | 99.4% |
| Ramshot TAC | <<locked>> | 88% | 54,853 psi | 87% | 2513 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 88% | 53,940 psi | 85% | 2530 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 86% | 55,550 psi | 88% | 2503 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,447 psi | 56% | 1552 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,201 psi | 86% | 2487 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 54,520 psi | 86% | 2516 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 56,478 psi | 90% | 2631 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 55,767 psi | 88% | 2664 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,863 psi | 77% | 2533 fps | 97.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,632 psi | 79% | 2552 fps | 96.8% |
| Rottweil R 901 | <<locked>> | 88% | 54,984 psi | 87% | 2480 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 54,215 psi | 86% | 2490 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 98% | 55,579 psi | 88% | 2556 fps | 99.8% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 56,492 psi | 90% | 2533 fps | 95.7% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 54,128 psi | 86% | 2510 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 90% | 54,476 psi | 86% | 2523 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 55,317 psi | 88% | 2523 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 53,882 psi | 85% | 2461 fps | 99.7% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 56,898 psi | 90% | 2530 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 53,838 psi | 85% | 2566 fps | 99.3% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 57,000 psi | 90% | 2484 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 56,753 psi | 90% | 2543 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 56,884 psi | 90% | 2559 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 55,767 psi | 88% | 2444 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 55,680 psi | 88% | 2444 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 54,752 psi | 87% | 2470 fps | 96% |
| Somchem S321 | <<locked>> | 86% | 55,608 psi | 88% | 2530 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 55,216 psi | 88% | 2448 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 56,086 psi | 89% | 2536 fps | 99.5% |
| Somchem S355 | <<locked>> | 98% | 56,231 psi | 89% | 2559 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,671 psi | 69% | 2461 fps | 99.3% |
| Vihtavuori N130 | <<locked>> | 86% | 55,869 psi | 89% | 2418 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 55,782 psi | 88% | 2434 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 57,014 psi | 90% | 2507 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 54,897 psi | 87% | 2480 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 54,201 psi | 86% | 2497 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 51,503 psi | 82% | 2510 fps | 98% |
| Vihtavuori N530 | <<locked>> | 88% | 54,810 psi | 87% | 2497 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 94% | 56,536 psi | 90% | 2520 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,473 psi | 80% | 2513 fps | 97.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,199 psi | 83% | 2497 fps | 99.5% |
| Winchester 748 | <<locked>> | 88% | 54,172 psi | 86% | 2539 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 56,956 psi | 90% | 2572 fps | 99.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 44,019 psi | 70% | 2293 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,906 psi | 76% | 2388 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,492 psi | 58% | 2215 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,902 psi | 68% | 2343 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 34,505 psi | 55% | 2198 fps | 99.1% |
| Accurate 4350 | <<locked>> | 94% | 39,871 psi | 63% | 2359 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 52,199 psi | 83% | 2365 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 52,605 psi | 83% | 2385 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 40,306 psi | 64% | 2297 fps | 97% |
| ADI AR 2208 | <<locked>> | 82% | 36,709 psi | 58% | 2211 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 52,823 psi | 84% | 2470 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,308 psi | 67% | 2310 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 80% | 42,032 psi | 67% | 2320 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 49,168 psi | 78% | 2490 fps | 99.2% |
| Alliant Power Pro 2000-MR | 36.1 gr | 82% | 39,044 psi | 62% | 2359 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,663 psi | 53% | 2178 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,777 psi | 79% | 2382 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,187 psi | 57% | 2234 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 94% | 40,379 psi | 64% | 2369 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 86% | 35,172 psi | 56% | 2283 fps | 95.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,082 psi | 81% | 2362 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,131 psi | 62% | 2293 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 33,025 psi | 52% | 2178 fps | 95.8% |
| Bofors RP7 | <<locked>> | 98% | 53,098 psi | 84% | 2484 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,309 psi | 70% | 2310 fps | 99.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,741 psi | 65% | 2326 fps | 98.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,643 psi | 71% | 2448 fps | 97.6% |
| Hodgdon H322 | <<locked>> | 80% | 48,443 psi | 77% | 2408 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 49,182 psi | 78% | 2428 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 41,510 psi | 66% | 2329 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 40,596 psi | 64% | 2306 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 34,592 psi | 55% | 2221 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,506 psi | 58% | 2274 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,933 psi | 41% | 1348 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,073 psi | 62% | 2267 fps | 97.2% |
| IMR 3031 | <<locked>> | 80% | 39,842 psi | 63% | 2313 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,201 psi | 57% | 2195 fps | 95.2% |
| IMR 4166 Enduron | <<locked>> | 90% | 52,663 psi | 83% | 2451 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 49,980 psi | 79% | 2346 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 52,141 psi | 83% | 2470 fps | 95.3% |
| IMR 4831 | <<locked>> | 94% | 38,682 psi | 61% | 2320 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 36,985 psi | 59% | 2260 fps | 96.1% |
| IMR 8208 XBR | <<locked>> | 80% | 42,308 psi | 67% | 2310 fps | 98.6% |
| Lovex D073.5 | <<locked>> | 80% | 47,456 psi | 75% | 2388 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 38,827 psi | 62% | 2280 fps | 99.2% |
| Lovex S060 | <<locked>> | 80% | 40,828 psi | 65% | 2251 fps | 97.2% |
| Lovex S062 | <<locked>> | 80% | 35,737 psi | 57% | 2198 fps | 97.1% |
| Lovex S065 | <<locked>> | 94% | 45,179 psi | 72% | 2372 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 39,595 psi | 63% | 2260 fps | 98.1% |
| Norma 202 | <<locked>> | 80% | 39,769 psi | 63% | 2274 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 35,549 psi | 56% | 2224 fps | 95.6% |
| Norma URP | <<locked>> | 94% | 40,350 psi | 64% | 2359 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 35,041 psi | 56% | 2231 fps | 95% |
| Ramshot TAC | <<locked>> | 82% | 45,092 psi | 71% | 2359 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,481 psi | 66% | 2329 fps | 97.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,963 psi | 73% | 2359 fps | 98.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,165 psi | 41% | 1381 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,630 psi | 75% | 2395 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 47,979 psi | 76% | 2418 fps | 95.2% |
| ReloadSwiss RS 52 | 34.1 gr | 80% | 37,449 psi | 59% | 2316 fps | 95.5% |
| ReloadSwiss RS 60 | 34.6 gr | 80% | 30,792 psi | 49% | 2185 fps | 96.3% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 42,424 psi | 67% | 2425 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 46,325 psi | 73% | 2493 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 43,540 psi | 69% | 2310 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 37,594 psi | 60% | 2215 fps | 97.6% |
| Rottweil R 903 | <<locked>> | 82% | 33,199 psi | 53% | 2178 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 98% | 53,098 psi | 84% | 2484 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 94% | 45,179 psi | 72% | 2372 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,827 psi | 62% | 2280 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 35,737 psi | 57% | 2198 fps | 97.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,314 psi | 80% | 2411 fps | 99.4% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 53,171 psi | 84% | 2480 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 36,506 psi | 58% | 2270 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,227 psi | 80% | 2395 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 43,062 psi | 68% | 2333 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,870 psi | 62% | 2270 fps | 96.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,089 psi | 65% | 2231 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,866 psi | 54% | 2110 fps | 99.3% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 51,358 psi | 81% | 2421 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 45,382 psi | 72% | 2382 fps | 99.3% |
| Somchem S335 | <<locked>> | 80% | 40,654 psi | 64% | 2234 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 39,871 psi | 63% | 2283 fps | 96.8% |
| Somchem S355 | <<locked>> | 82% | 34,142 psi | 54% | 2185 fps | 95.6% |
| Somchem S365 | <<locked>> | 90% | 31,792 psi | 50% | 2215 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 46,499 psi | 74% | 2297 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,278 psi | 65% | 2231 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,695 psi | 58% | 2211 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,666 psi | 60% | 2218 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 80% | 30,516 psi | 48% | 2087 fps | 95.8% |
| Vihtavuori N160 | <<locked>> | 92% | 39,769 psi | 63% | 2316 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 42,424 psi | 67% | 2310 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 80% | 36,260 psi | 57% | 2205 fps | 99% |
| Vihtavuori N550 | <<locked>> | 94% | 41,684 psi | 66% | 2365 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 35,302 psi | 56% | 2201 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 41,568 psi | 66% | 2346 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,014 psi | 60% | 2270 fps | 97% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 96 powders for .277 Fury Commercial loaded with the .277 | 150gr | Nosler Partition Gold. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,664 fps; across all powders the maximum-charge window runs from 1,512 fps to 2,664 fps. Accurate 4350 gives the best case fill at 100 %, and 96 of the 96 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (435 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.277" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, ReloadSwiss RS 52 rank at the top here: for .277 Fury Commercial with the .277 | 150gr | Nosler Partition Gold they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.